What’s Below the Foramen Magnum?

Explore a case of tonsillar herniation on a T1-weighted MRI. Learn about the diagnosis and management of this common posterior fossa abnormality.

Chiari I malformation


What is the diagnosis?

What is the most likely diagnosis?

Cerebral aneurysm
Chiari I malformation
Neurofibromatosis
Paget disease
Subdural hematoma

Chiari I malformation, Neurology, Posterior fossa, Syringomyelia, Tonsillar herniation

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